Electromagnetic Spectrum and Light

Electromagnetic Waves Electromagnetic waves are transverse waves that consist of changing electric and magnetic fields

Electromagnetic Waves They are produced when an electric charge vibrates and accelerates

Electromagnetic waves Electromagnetic waves can travel through empty space as well as matter The transfer of energy by electromagnetic waves traveling through matter or through space is called electromagnetic radiation

The Electromagnetic Spectrum The electromagnetic spectrum consists of radio waves, infrared rays ,visible light, ultraviolet rays, x-rays, and gamma rays Each type of wave is characterized by specific wavelength and frequencies As wavelength shortens, frequency becomes higher

Radio Waves Radio waves are used in radio and television technologies They are also used in radar technologies

Microwaves Microwaves has a slightly short wavelength and higher frequency than radio waves Microwaves are used in kitchen appliances used to heat food

Infrared Rays Infrared waves are used as a source of heat and also to discover sources of heat Infrared rays are not visible Used in heat sensing technologies

Visible Light These waves are the visible part of the spectrum. Visible light is broken into six colors (red, orange, yellow, green, blue, violet) Each color has a specific wavelength and frequency

Ultraviolet Rays In moderation, exposure to UV rays help your body to produce vitamin D However, if overly exposed to UV rays, they can damage your skin as well as your eyes

X-rays X-rays are most commonly used in medical technology X-rays can take pictures of the inside of solid objects

Gamma Rays Gamma rays are used in the medical field to kill cancer cells, take pictures of the brain, and can also be used for industrial inspection purposes Gamma rays have the shortest wavelength and the highest frequency on the EM spectrum

Video https://www.youtube.com/watch?v=HPcAWNlVl-8